* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #E1E7EA;
}

#app {
    width: 580px;
    height: 100%;
    margin: 0 auto;
    /* border: 1px solid black;  */
}

h2 {
    text-align: center;
    color:tomato;
}


ul li {
    list-style: none;
    float: left;
    display: block;
    background-color: #fff;
    width: 280px;
    margin: 5px;
}

ul #price {
    margin-left:80px;
    color: red;
    font-family: arial;
    line-height: 1;
    font-size: 24px;
}

ul #title {
    /*居中*/
    display:block;
    text-align: center;
    font-size: 17px;
} 

a {
    text-decoration: none;
    color: #333;
}